A form will open > Click on Number Sequences Tab. Then you can see Free Text Invoice in the list with a Number Sequence Code Assigned to it. Right click on that code and click Go To Main Table Form.
Then your number sequence for that Free Text Invoice will Open.
Now Click on General Tab > Mark the Manual Checkbox.
I tried but it’s throwing error like above i mentioned in 1st picture when i am trying to post free text invoice . If I am trying to insert manual invoice id , it’s throwing error like 2nd picture.
Sounds Good. Please mark those answers/replies which solved your Question in this post so if someone had the same issue they will know which ones are answer.