How To Fix STGR302 - Action cancelled; maximum number of lines exceeded

SAP Error Message - Details

• Message type: E = Error

• Message class: STGR - Hold store grouping messages

• Message number: 302

• Message text: Action cancelled; maximum number of lines exceeded

What causes this issue?

Grids in the web interface cannot contain more than 25 lines.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Refine your selection until you bring the number of lines below 25 and
add one new line at a time until the grid contains 25 lines . Then, use
standard access instead of Web access for further addition of lines.

Error message extract from SAP system. Copyright SAP SE.