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Create records in a table that combines data from two sources

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Posted on by EricSara77

In Power Apps I have a collection called colSelectedCopyTestors and it has a column called ‘1M UAT TestorsID’.

I also have a collection called colSelectedTests and it has columns called UATTestNumber .

I have a table of data called 1M_UAT_Library and it has columns of UATTestNumber, Module, Area, TestName, Resources and 'Requirement Level'.

I also have a table of data called 1M_UAT_ProjectTests and it has a columns called UATTestNumber, Module, Area, Test Name, Resources, ‘1M UAT TestorsID’ and ‘'Requirement Level'.

When a user hits a button, for each combination of records in colSelectedCopyTestors and colSelectedTests I want to add a new record to 1M_UAT_ProjectTests. The following lists the fields in 1M_UAT_ProjectTests and where the value should come from.
UATTestNumber = colSelectedTests. UATTestNumber
Module = Look up colSelectedTests. UATTestNumber in 1M_UAT_Library. UATTestNumber and return Module
Area = Look up colSelectedTests. UATTestNumber in 1M_UAT_Library. UATTestNumber and return Area
Test Name = Look up colSelectedTests. UATTestNumber in 1M_UAT_Library. UATTestNumber and return TestName
Resources = Look up colSelectedTests. UATTestNumber in 1M_UAT_Library. UATTestNumber and return Resources
‘1M UAT TestorsID’ = colSelectedCopyTestors. ‘1M UAT TestorsID’
'Requirement Level' = Look up colSelectedTests. UATTestNumber in 1M_UAT_Library. UATTestNumber and return 'Requirement Level'

I am using this code;

ForAll(
    colSelectedCopyTestors,
    ForAll(
        colSelectedTests,
        Patch('1M_UAT_ProjectTests',Defaults('1M_UAT_ProjectTests'),
            {
                UATTestNumber: ThisRecord.UATTestNumber,
                Module: LookUp('1M_UAT_Libraries', UATTestNumber = UATTestNumber).Module,
                Area: LookUp('1M_UAT_Libraries', UATTestNumber = UATTestNumber).Area,
                'Test Name': LookUp('1M_UAT_Libraries', UATTestNumber = UATTestNumber).TestName,
                Resources: LookUp('1M_UAT_Libraries', UATTestNumber = UATTestNumber).Resources,
                'Requirement Level': LookUp('1M_UAT_Libraries', UATTestNumber = UATTestNumber).'Requirement Level',
                '1M UAT TestorsID': ThisRecord.'1M UAT TestorsID'})))
 
But in the line "Patch('1M_UAT_ProjectTests',Defaults('1M_UAT_ProjectTests')," both instances of '1M_UAT_ProjectTests' return an error of "Invalid argument type (Guid). Expecting a Table value instead"
 
Any help on this one would be great. 

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Suggested answer

SwatiSTW 807 Super User 2026 Season 1 on at

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The error message you're seeing means that the intended argument types don't match up. In Power Apps, the first argument to the Patch function should be a table or a record, but it's getting a GUID or a value that isn't organized correctly as a table.

Here's what you can do to fix the problem and your code:

ForAll(
colSelectedCopyTestors,
ForAll(
colSelectedTests,
Patch(
'1M_UAT_ProjectTests',
Defaults('1M_UAT_ProjectTests'),
{
UATTestNumber: ThisRecord.UATTestNumber,
Module: LookUp('1M_UAT_Library', UATTestNumber = ThisRecord.UATTestNumber).Module,
Area: LookUp('1M_UAT_Library', UATTestNumber = ThisRecord.UATTestNumber).Area,
'Test Name': LookUp('1M_UAT_Library', UATTestNumber = ThisRecord.UATTestNumber).TestName,
Resources: LookUp('1M_UAT_Library', UATTestNumber = ThisRecord.UATTestNumber).Resources,
'Requirement Level': LookUp('1M_UAT_Library', UATTestNumber = ThisRecord.UATTestNumber).'Requirement Level',
'1M UAT TestorsID': ThisRecord.'1M UAT TestorsID'
}
)
)
)

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AndrianaO 213 Moderator on at

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Hi! I am not sure if this causes your error, but I would change the following:

ThisRecord operator cannot get the value from the outer ForAll() loop, so I would rewrite the formula as follows:

ForAll(

  colSelectedCopyTestors As OuterLoop
,

  ForAll(

  colSelectedTests,

  Patch('1M_UAT_ProjectTests',Defaults('1M_UAT_ProjectTests'),

  {

UATTestNumber: ThisRecord.UATTestNumber,

Module: LookUp('1M_UAT_Libraries', UATTestNumber = UATTestNumber).Module,

Area: LookUp('1M_UAT_Libraries', UATTestNumber = UATTestNumber).Area,

'Test Name': LookUp('1M_UAT_Libraries', UATTestNumber = UATTestNumber).TestName,

Resources: LookUp('1M_UAT_Libraries', UATTestNumber = UATTestNumber).Resources,

'Requirement Level': LookUp('1M_UAT_Libraries', UATTestNumber = UATTestNumber).'Requirement Level',

'1M UAT TestorsID': OuterLoop.'1M UAT TestorsID'})))

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Verified answer

WarrenBelz 154,411 Most Valuable Professional on at

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Hi @EricSara77

The issue is indeed the ambiguity with ThisRecord in a nested ForAll statement. To completely eliminate any ambiguity, try this

ForAll( colSelectedCopyTestors As _Testors, ForAll( colSelectedTests As _Tests, With( { _Lib: LookUp( '1M_UAT_Libraries', UATTestNumber = _Tests.UATTestNumber ) }, Patch( '1M_UAT_ProjectTests', Defaults('1M_UAT_ProjectTests'), { UATTestNumber: _Lib.UATTestNumber, Module: _Lib.Module, Area: _Lib.Area, 'Test Name': _Lib.TestName, Resources: _Lib.Resources, 'Requirement Level': _Lib.'Requirement Level', '1M UAT TestorsID': _Testors.'1M UAT TestorsID' } ) ) ) )

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