Error Codes

We use custom error codes (not to be confused with Solidity custom errors) in our pool contracts to keep the size of the contracts as small as possible.

Below you can find the existing error codes and a description for each one.

Error code	Description
1	User is not authorized
2	Empty array provided as input
3	Pool is full of TCO2s
4	ERC20 is blacklisted in the pool. This error is returned for TCO2s that have been blacklisted like the HFC-23 project
5	ERC20 is not whitelisted in the pool. This error is returned in case the ERC20 is not a TCO2 in which case it has to be manually whitelisted in order to be allowed in the pool
6	Vintage start time of a TCO2 is too old
7	Region is not accepted in the pool
8	Standard is not accepted in the pool
9	Methodology is not accepted in the pool
10	Provided fee is invalid, not in a basis points format: [0,10000)
11	Provided address needs to be non-zero
12	Validation check to ensure array lengths match
13	TCO2 not exempted from redeem fees
14	The pool is paused
15	Redemption transaction has leftover unredeemed value. All value needs to be redeemed in order for the transaction to be successfull
16	Redemption exceeds deposited TCO2 supply
17	User must be a router
18	User must be the pool owner
19	Zero destination address is invalid for pool token transfers
20	Self destination address is invalid for pool token transfers
21	Zero amount provided as an input (eg., in redemptions) in invalid
22	ERC20 is not eligible to be pooled
23	Carbon registry is already supported in COB
24	The caller is not granted the VERIFIER_ROLE in COB
25	The caller does not own the provided batch
26	The caller is not a valid batch owner (not a TCO2 contract or verifier)
27	The batch is not in Confirmed status
28	The batch is not in a requested status (DetokenizationRequested or RetirementRequested)
29	The batch does not exist
30	The batch has an invalid status based on the action requested
31	The batch is missing an associated project vintage
32	The serial number in the batch is already approved
33	The batch is not in Pending status
34	The batch is already fractionalized
35	The batch is not in Rejected status
36	The project vintage is already set in the batch
37	The transfer is not approved
38	The COB contract is paused
39	The caller is invalid
40	The TCO2 for the batch is not found
41	The registry for the provided vintage is not supported
42	No TCO2 was minted as part of tokenization
43	Only mints are supported for the batch contract to receive an NFT
44	New batch status is invalid
45	The TCO2 batch amount has a mismatch
46	The TCO2 batch amount approval has failed
47	The TCO2 batch not confirmed
48	The TCO2 batch not whitelisted
49	The TCO2 is non matching NFT
50	The TCO2 Quantity in batch is higher than total vintages