Considerations and limitations

There are some basic limitations that should be taken into consideration when working with ArcGIS Online sharing API. The table below outlines what should be considered. This is a dynamic list that may be updated as new functionality is introduced.

Limitation type			Maximum limit
Search
Maximum Search results per request/page			Maximum of 100 results returned
Maximum Search results per query			Only the first 10,000 results can be paginated; results greater than 10,000 cannot be returned through pagination. The actual number of total returned results may be greater than 10,000.
Maximum size of query string			10 Kb
File upload
Maximum file upload size for Generate			10 Mb
Add Item in a single upload			Maximum file size 5 Gb
Add Item in multipart uploads			Maximum file size 500 Gb; maximum number of parts 10,000
Item Info
Maximum file size allowed for Item Info files			100 Kb
Maximum number of Item Info files per request			20
Maximum thumbnail size			10 Mb
Token generation
Maximum token expiration time			Two weeks
Users and groups
Maximum number of groups a User can belong to (both owning and joined as a group member)			512
Maximum number of user names allowed for /checkUsernames per request			200 Note: A valid user name must be between 3 and 128 ASCII characters and cannot already exist as a user name or user ID. This limitation was added in ArcGIS Online and ArcGIS Enterprise 10.8.
Adding and updating items
Maximum number of screenshots per item			10
Maximum size of item description			64 Kb
Maximum number of characters for item title			256
Maximum number of characters for item snippet			2048
Maximum number of type keywords on an item			128
Maximum number of characters for each type keyword			256
Maximum number of tags on an item			128
Maximum number of characters for each tag			256
Maximum size of any other text field item properties			64 Kb
Maximum number of type keywords on a group			128
Maximum number of characters for each type keyword			256