Insert DOUBLE type in TWA

Document ID : KB000099853
Last Modified Date : 01/06/2018
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Question:
We have created a z field, type DOUBLE and we need to insert it into the CMDB with TWA (GRLOADER) 
We insert it into the TWA but when we do the commit we get an error that the z attribute does not match the family and class of the CI. 

Our steps were: 
1 - Create the z attribute (type DOUBLE) in the extension family table (CI_hardware_server) 
2 - Create the z attribute (type STRING) in the TWA table 
3 - Insert z attribute in the forms 

We've been looking for more attributes type DOUBLE but we couldn't find any, so we're not sure that's possible to charge in CMDB from TWA with GRLOADER. 
Environment:
CA Service Desk Manager 14.1
CA Service Desk Manager 17.1
Answer:
Unfortunately the "double" data format is not supported for web service calls and the GRLOADER uses web services to do its job. 
Grloader supports the following data types: 

INTEGER 
STRING 
DATE 
UUID 
SREL 
LOCAL 
DURATION