How do I update existing source list records in ME01?
Transaction 10.x / 11/x
There are no positioning controls. (ex. Filter, Search)
In order to update existing records in a source list, you will need to record using GUI scripting.
When recording, retype the value you will be searching for, and then apply your change to that row.
In the mapper, create an If on Index Field condition on the field you want to change, and use the value you're searching for as the index field.
In the example below, fixed source of supply will be checked when the agreement number in column C is found: