Hi Zain,
With the help of your dimension I have created one txt file please refer these file and try once again.
One thing that i want to highlight there is no need to create signeddata dimension this is system reserved keyword. when you create signeddata dimension system will through an error that why you created "SIGNED_DATA".
NOTE: members should be the same as you have maintained in each dimension.
1) Create txt or csv file with the help of your dimension and dimension members butdimension member must be base level members.
2) Upload the file to server.
3) Create transformation file that will map each dimension members with your dimension. Use same dimension name that you have created for example you have created P_ACCT so in transformation file use P_ACCT to map the data.
4) Then validate and save transformation file with uploaded data.
I have created .csv file except "SIGNED_DATA" dimension.You have to upload this file (similar file taking same dimension members) to server and create new transformation file as shown below screen and validate and run package. For your case add one more column Signed_data dimension.
Take all dimension and its' base level members and upload file.
Transformation file
I hope this time you will complete your task successfully.
Sushant