Hi praveens007 ,
You can do a request change in this PO, then click on 'Edit' to edit this document. After that you can select necessary financial dimension values, confirm the PO and do the invoicing.
Also, you need to check in other areas too. First identity the item you selected in the PO, is service or stocked item. Then you have to first check in inventory posting profile setup in 'Purchase order' section whether all relevant posting types are selected with appropriate main accounts or not. When you are processing PO; system will pick main accounts from inventory posting profile itself.
Once you do the request change in the PO, you can check in Financial > Distribute amounts form after selecting the PO line to find out if any main account is missing there or not. If it is missing, that means you have missed out setups in inventory posting profile.
If the reason is 'Main account'; then one more reason may involved here for not updating account in PO which is; may be you created this PO first, then you updated posting profile later. Therefore, this change will not reflect in this PO as it is created before this change. In that case, you can 'Remove' that line and re-create it again. If inventory posting profile is fine, then system will automatically pick main accounts from there.
Best regards,
Sourav Dam
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