Hi.
Posting here since marketplace is confusing af.
The sharepoint 2.5.0 and 2.6.0 output connector is bugged for lists. it cannot append/overwrite a null value if data type if double or float to a target field that is numeric (numeric covers double/float in sharepoint) in sharepoint.
Insert/Update/Upsert seems to work; but not append or overwrite.
Current workaround is to use the deprecated sharepoint list output connector.
or make a macro where that runs 2 passes. First overwrite with all non-numeric fields, and then run another update on the numeric fields..