Join us at FabCon Atlanta from March 16 - 20, 2026, for the ultimate Fabric, Power BI, AI and SQL community-led event. Save $200 with code FABCOMM.
Register now!The Power BI Data Visualization World Championships is back! It's time to submit your entry. Live now!
Hi, I need some help with my M code.
I have a large table and I need to take two columns from it and turn them into one. I'm trying to accomplish this with this M code:
let
Origen = Table.Distinct(Table.SelectRows(Table.SelectColumns(VW_BT_Desembolsos,{"Solicitud_Asoc"}),each ([Solicitud_Asoc]<> 0 and [Solicitud_Asoc]<> null))),
_table_final_1 = Table.TransformColumnTypes(Origen, {{"Solicitud_Asoc", type text}}),
Origen2 = Table.SelectRows(Table.SelectColumns(VW_BT_Desembolsos,{"Solicitud_Asoc","Cuit_Producto_"}),each ([Solicitud_Asoc]= 0 or [Solicitud_Asoc]= null)),
_table_final_prev3 = Table.Distinct(Table.SelectColumns(Origen2,{"Cuit_Producto_"})),
_table_final_prev4 = Table.TransformColumnTypes(_table_final_prev3, {{"Cuit_Producto_", type text}}),
_table_final_2 = Table.RenameColumns(_table_final_prev4,{{"Cuit_Producto_", "Solicitud_Asoc"}}),
_table_final = Table.Combine({"_table_final_1","_table_final_2"})
in
_table_final
But I'm having this error:
Cannot cast value "_table_final_1" to type Table.
What am I missing?
PS: can't share my table couse confideality policy.
Thanks a lot.
Solved! Go to Solution.
You are using literal strings. You need to refer to the tables themselves.
try:
_table_final = Table.Combine({_table_final_1,_table_final_2})
You are using literal strings. You need to refer to the tables themselves.
try:
_table_final = Table.Combine({_table_final_1,_table_final_2})
Begginer mistake 😂 thansk a lot!
You're welcome. And I've made that mistake myself. Please consider marking my response as the answer.
The Power BI Data Visualization World Championships is back! It's time to submit your entry.
Check out the January 2026 Power BI update to learn about new features.
| User | Count |
|---|---|
| 6 | |
| 5 | |
| 4 | |
| 4 | |
| 3 |
| User | Count |
|---|---|
| 12 | |
| 12 | |
| 8 | |
| 7 | |
| 7 |