activities
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Integration Service Activities

Last updated Feb 19, 2026

Upload Activity Attachment

Project compatibility

Windows | Cross-platform

Overview

DescriptionAPI MethodAPI Path
Add a new activity attachment to email and task activities in Microsoft Dynamics 365 CRM. POST/activitymimeattachments/activitypointers/{activityId}

Input

ParameterDescriptionData Type
FileFile to be uploaded and attached to the selected activity (email or task) file
Activity IDUnique identifier of the activity (email or task) to which the attachment will be added. This can be retrieved using a List All Records activity, with an Activity pointers object string
SubjectSubject or title of the attachment displayed in the activity record string

Output

ParameterDescriptionData Type
ResponseOutput object containing details of the newly created activity attachment Object
Activity mime attachment IDUnique identifier of the activity attachment record created in Dynamics 365 string
Note:
  • In API workflows, a single response object is returned as the output. Any required fields can be extracted directly from this object.
  • In RPA workflows, some output parameters may differ, but the necessary values can still be retrieved from the response object even if they are not explicitly exposed.
  • Project compatibility
  • Overview
  • Input
  • Output

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