> ## Documentation Index > Fetch the complete documentation index at: https://docs.superoffice.com/llms.txt > Use this file to discover all available pages before exploring further. # Post Shipment Message Block Entity > Creates a new ShipmentMessageBlockEntity Calls the Marketing agent service SaveShipmentMessageBlockEntity. NsApiSlow threshold: 5000 ms. ## OpenAPI ````yaml /openapi/rest/openapi-v3-ShipmentMessageBlock.json post /api/v1/ShipmentMessageBlock openapi: 3.0.0 info: version: v1-REST title: SuperOffice REST API v1 description: SuperOffice REST API - ShipmentMessageBlock contact: name: SuperOffice DevNet url: https://docs.superoffice.com/en/api/index.html email: sdk@superoffice.com servers: - url: http://localhost:56350 - url: https://localhost:56350 security: [] tags: [] externalDocs: description: >- The SuperOffice DevNet Community has more documentation, examples, and discussion forums. url: https://community.superoffice.com/en/developer/ paths: /api/v1/ShipmentMessageBlock: post: tags: - ShipmentMessageBlock summary: Post Shipment Message Block Entity description: "Creates a new ShipmentMessageBlockEntity\n\nCalls the Marketing agent service SaveShipmentMessageBlockEntity.\r\nNsApiSlow threshold: 5000 ms." operationId: v1ShipmentMessageBlockEntity_PostShipmentMessageBlockEntity parameters: - name: $select in: query description: >- Optional comma separated list of properties to include in the result. Other fields are then nulled out to reduce payload size: "Name,department,category" Default = show all fields. required: false schema: type: string - name: Accept-Language in: header description: >- Convert string references and multi-language values into a specified language (iso2) code. required: false schema: type: string - name: SO-Language in: header description: >- Convert string references and multi-language values into a specified language (iso2) code. Overrides Accept-Language value. required: false schema: type: string - name: SO-Culture in: header description: >- Number, date formatting in a specified culture (iso2 language) code. Partially overrides SO-Language/Accept-Language value. Ignored if no Language set. required: false schema: type: string - name: SO-TimeZone in: header description: >- Specify the timezone code that you would like date/time responses converted to. required: false schema: type: string - name: SO-AppToken in: header description: >- The application token that identifies the partner app. Used when calling Online WebAPI from a server. required: false schema: type: string requestBody: $ref: >- #/components/requestBodies/SuperOffice.CRM.Services.ShipmentMessageBlockEntity responses: '200': description: OK content: application/json: schema: $ref: >- #/components/schemas/SuperOffice.WebApi.v1.Carriers.MarketingCarriers.ShipmentMessageBlockEntityWithLinks text/json: schema: $ref: >- #/components/schemas/SuperOffice.WebApi.v1.Carriers.MarketingCarriers.ShipmentMessageBlockEntityWithLinks application/xml: schema: $ref: >- #/components/schemas/SuperOffice.WebApi.v1.Carriers.MarketingCarriers.ShipmentMessageBlockEntityWithLinks text/xml: schema: $ref: >- #/components/schemas/SuperOffice.WebApi.v1.Carriers.MarketingCarriers.ShipmentMessageBlockEntityWithLinks application/json-patch+json: schema: $ref: >- #/components/schemas/SuperOffice.WebApi.v1.Carriers.MarketingCarriers.ShipmentMessageBlockEntityWithLinks application/merge-patch+json: schema: $ref: >- #/components/schemas/SuperOffice.WebApi.v1.Carriers.MarketingCarriers.ShipmentMessageBlockEntityWithLinks security: - SuperOffice_Password: [] SuperId_Authentication: [] components: requestBodies: SuperOffice.CRM.Services.ShipmentMessageBlockEntity: content: application/json: schema: $ref: >- #/components/schemas/SuperOffice.CRM.Services.ShipmentMessageBlockEntity text/json: schema: $ref: >- #/components/schemas/SuperOffice.CRM.Services.ShipmentMessageBlockEntity application/xml: schema: $ref: >- #/components/schemas/SuperOffice.CRM.Services.ShipmentMessageBlockEntity text/xml: schema: $ref: >- #/components/schemas/SuperOffice.CRM.Services.ShipmentMessageBlockEntity application/x-www-form-urlencoded: schema: $ref: >- #/components/schemas/SuperOffice.CRM.Services.ShipmentMessageBlockEntity application/json-patch+json: schema: $ref: >- #/components/schemas/SuperOffice.CRM.Services.ShipmentMessageBlockEntity application/merge-patch+json: schema: $ref: >- #/components/schemas/SuperOffice.CRM.Services.ShipmentMessageBlockEntity description: The ShipmentMessageBlockEntity to be saved. required: true schemas: SuperOffice.WebApi.v1.Carriers.MarketingCarriers.ShipmentMessageBlockEntityWithLinks: description: "This entity contains information about design blocks that can be used in a shipment/mailing message\r\n\r\nShipmentMessageBlockEntity entity with API _Links added." type: object properties: ShipmentMessageBlockId: format: int32 description: Primary key type: integer AssociateId: format: int32 description: The associate that owns this block type: integer Block: description: The block definition. Normally this will be a json structure type: string Registered: format: date-time description: Registered when in UTC. type: string RegisteredAssociateId: format: int32 description: Registered by whom type: integer Updated: format: date-time description: Last updated when in UTC. type: string UpdatedAssociateId: format: int32 description: Last updated by whom type: integer UpdatedCount: format: int32 description: Number of updates made to this record type: integer TableRight: $ref: '#/components/schemas/SuperOffice.CRM.Security.TableRight' FieldProperties: description: >- Field property dictionary mapping field names to field access rights. type: object additionalProperties: $ref: '#/components/schemas/SuperOffice.CRM.Security.FieldProperty' _Links: type: object additionalProperties: type: string SuperOffice.CRM.Services.ShipmentMessageBlockEntity: description: "This entity contains information about design blocks that can be used in a shipment/mailing message\r\n\r\nCarrier object for ShipmentMessageBlockEntity.\r\nServices for the ShipmentMessageBlockEntity Carrier is available from the Marketing Agent." type: object properties: ShipmentMessageBlockId: format: int32 description: Primary key type: integer AssociateId: format: int32 description: The associate that owns this block type: integer Block: description: The block definition. Normally this will be a json structure type: string Registered: format: date-time description: Registered when in UTC. type: string RegisteredAssociateId: format: int32 description: Registered by whom type: integer Updated: format: date-time description: Last updated when in UTC. type: string UpdatedAssociateId: format: int32 description: Last updated by whom type: integer UpdatedCount: format: int32 description: Number of updates made to this record type: integer TableRight: $ref: '#/components/schemas/SuperOffice.CRM.Security.TableRight' FieldProperties: description: >- Field property dictionary mapping field names to field access rights. type: object additionalProperties: $ref: '#/components/schemas/SuperOffice.CRM.Security.FieldProperty' SuperOffice.CRM.Security.TableRight: description: "Wraps a table right together with an explanatory reason.\r\nCode can indicate why access is restricted." type: object properties: Mask: type: string Reason: type: string SuperOffice.CRM.Security.FieldProperty: description: >- Class holding properties like field length, field type about a field in the carrier. type: object properties: FieldRight: $ref: '#/components/schemas/SuperOffice.CRM.Security.FieldRight' FieldType: type: string FieldLength: format: int32 description: '' type: integer SuperOffice.CRM.Security.FieldRight: description: "Wraps the field right together with an explanatory reason.\r\nAlso adds logical operators to the field rights so that they can be easily combined." type: object properties: Mask: type: string Reason: type: string ```` ## Related topics - [Delete Shipment Message Block Entity](/en/api/reference/restful/agent/marketing_agent/delete-shipment-message-block-entity.md) - [NSShipmentMessageBlockEntity](/en/automation/crmscript/reference/CRMScript.NetServer.NSShipmentMessageBlockEntity.md) - [Get Shipment Message Block Entity](/en/api/reference/restful/rest/shipmentmessageblock/get-shipment-message-block-entity.md) - [Default Shipment Message Block Entity](/en/api/reference/restful/rest/shipmentmessageblock/default-shipment-message-block-entity.md) - [Put Shipment Message Block Entity](/en/api/reference/restful/rest/shipmentmessageblock/put-shipment-message-block-entity.md)