Sometimes Admins will delete the VDA, so the StartCount of the pool will be out of sequence.
For example:
VDA name is VDA01 VDA02 ... VDA49, VDA50.
Admin deletes the VDA03 and VDA04, and add new VDA, the new VDA name will be VDA51, VDA52, so the 03 and 04 cannot be used again.
Admins can modify the StartCount to reuse the VDA03 and VDA04
 

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Instructions

Using the powershell command to modify the StartCount:
asnp Citrix*
Get-AcctIdentityPool
Set-AcctIdentityPool -IdentityPoolName PoolName -StartCount Num

PoolName could be checked with command:Get-AcctIdentityPool
Num is the number you want to start

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