How To Fix VO203 - No data was changed (not necessary to save)

SAP Error Message - Details

• Message type: E = Error

• Message class: VO - W&S: Rough workload forecast + picking wave

• Message number: 203

• Message text: No data was changed (not necessary to save)

What causes this issue?

You have selected F11 (save). However, the system has ascertained that
the control data you have just entered is identical to that in the
database. For this reason, the function does not need to be carried
out.

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?

Error message extract from SAP system. Copyright SAP SE.