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how can I mint new token when my supply exceeds 2 ^^ 64 / 10 x decimals tokens? Or are there any methods to reduce decimals? Help me please

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2 Answers 2

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I don't think you can, any token mint's maximum supply is 2^64 - 1 since its type is u64

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When creating a new token using the SPL Token CLI you can specify the number of decimals using the --decimals argument.

 % spl-token create-token --decimals 2

Creating token GrnPLdqszDQaYEunJBAW7c8gTmqrcZzqEzFK8F9YGE3e under program TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA

Address:  GrnPLdqszDQaYEunJBAW7c8gTmqrcZzqEzFK8F9YGE3e
Decimals:  2

Now you can mint up to $\frac{2^{64} - 1}{2}$ tokens.

 % spl-token create-account GrnPLdqszDQaYEunJBAW7c8gTmqrcZzqEzFK8F9YGE3e                                                                                                                   
Creating account B34DJ8ymK9GbRCMMEn1pwobrruCd8ek5KWtWHkmCWxLR

 % spl-token mint GrnPLdqszDQaYEunJBAW7c8gTmqrcZzqEzFK8F9YGE3e 18446744073709551615                                                                                                        
Minting 18446744073709552000 tokens
  Token: GrnPLdqszDQaYEunJBAW7c8gTmqrcZzqEzFK8F9YGE3e
  Recipient: B34DJ8ymK9GbRCMMEn1pwobrruCd8ek5KWtWHkmCWxLR
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    I mean can I change decimals for existing token? How can I mint them if its supply exceeds 2^64/10*decimals tokens? Commented Jan 5 at 1:36

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