i had to pass datatable from a workflow to another , in each wokflow i add string to a cell but it did not work
Youll need to use Arguments to pass data from workflows.
You can get a preview of how this works by creating 2 sequences and have some data pass through both sequences. Then rightclick on the sequence and extract as workflow.
Where the workflows are called you can click on Edit to see the arguments passed.
for a tutorial about arguments, check: