Different Best Purchase Price from cost price

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Hi,

Under the tab Buying prices in product card, why is it that it is showing different Best purchase price for some of my products from cost price?

And some of my products having the same Best purchase price and cost price?

Please can you explain to me what does the best purchase price really mean?

Thanks.

[aljawaid]

The best purchase price is the lowest price that dolibarr has calculated form your linked suppliers.

The cost price is a manual figure which you can change yourself - not linked to anything.

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Thank you very much Guru Aljawaid