# update-crowdloan-min-contribution (/docs/tx/update-crowdloan-min-contribution)

Changes the smallest contribution the crowdloan will accept from that
point on; contributions already made are unaffected. Only the creator may
change it, and only while the loan has not been finalized.

| Signer    | Pallet    | Wraps                               |
| --------- | --------- | ----------------------------------- |
| `coldkey` | Crowdloan | `Crowdloan.update_min_contribution` |

## Parameters [#parameters]

| Parameter                  | Type              | Required | Description                                                |
| -------------------------- | ----------------- | -------- | ---------------------------------------------------------- |
| `crowdloan_id`             | integer           | yes      | Identifier of the crowdloan, assigned when it was created. |
| `new_min_contribution_tao` | number \| `"all"` | yes      | New smallest contribution the crowdloan will accept.       |

Address parameters (`--hotkey`, `--coldkey`, `--dest`, ...) accept a raw ss58
address, an address-book or proxy-book name, or a local wallet/hotkey name.

## CLI [#cli]

Preview with `--dry-run` (shows fee, effects, and policy result without
submitting), then submit:

```bash
btcli tx update-crowdloan-min-contribution \
  --crowdloan-id <int> \
  --new-min-contribution-tao <amount|all> --dry-run
btcli tx update-crowdloan-min-contribution \
  --crowdloan-id <int> \
  --new-min-contribution-tao <amount|all> -w my_coldkey
```

## Python [#python]

```python
import bittensor as sub
from bittensor.wallet import Wallet

wallet = Wallet(name="my_coldkey", hotkey="my_hotkey")
intent = sub.UpdateCrowdloanMinContribution(crowdloan_id=0, new_min_contribution_tao=1.0)

async with sub.Client("finney") as client:
    plan = await client.plan(intent, wallet)   # fee, effects, policy — no submission
    result = await client.execute(intent, wallet)
    if not result.success:
        print(result.error.code, result.error.remediation)
```

Or build it by op name, as an agent would:

```python
await client.execute_tool("update_crowdloan_min_contribution", {...}, wallet)
```