# Error in subsciption module
**URL:** https://discuss.tryton.org/t/error-in-subsciption-module/8353
**Category:** User
**Created:** [February 28, 2025, 8:33am UTC](https://discuss.tryton.org/t/error-in-subsciption-module/8353 "2025-02-28T08:33:58Z")
**Posts on this page:** 10
**Page:** 1
### Author:  [@Eulengesicht](https://discuss.tryton.org/u/Eulengesicht)
#### Post date: [February 28, 2025, 8:33am UTC](https://discuss.tryton.org/t/error-in-subsciption-module/8353/1 "2025-02-28T08:33:59Z")
Hello,
having installed the subscription module, I filled in all mandatory fields and tried to create an offer. Here this message appeared:
```auto
Traceback (most recent call last):
File "/trytond/wsgi.py", line 109, in dispatch_request
return endpoint(request, **request.view_args)
File "/trytond/protocols/dispatcher.py", line 43, in rpc
return methods.get(request.rpc_method, _dispatch)(
File "/trytond/wsgi.py", line 75, in wrapper
return func(request, *args, **kwargs)
File "/trytond/protocols/wrappers.py", line 200, in wrapper
return func(request, pool, *args, **kwargs)
File "/trytond/protocols/dispatcher.py", line 196, in _dispatch
result = rpc.result(meth(*c_args, **c_kwargs))
File "/trytond/model/modelview.py", line 753, in wrapper
return func(cls, records, *args, **kwargs)
File "/trytond/model/workflow.py", line 37, in wrapper
result = func(cls, filtered, *args, **kwargs)
File "/trytond/modules/company/model.py", line 66, in wrapper
result = func(cls, records, *args, **kwargs)
File "/trytond/modules/sale_subscription/subscription.py", line 375, in quote
cls.set_number(subscriptions)
File "/trytond/modules/sale_subscription/subscription.py", line 282, in set_number
company=subscription.company.id).get()
AttributeError: 'NoneType' object has no attribute 'get'
Fault: 'NoneType' object has no attribute 'get'
```
This is how input windows look like:
This should not happen, true?
What should I do.
EG
---
### Author:  [@pokoli](https://discuss.tryton.org/u/pokoli)
#### Post date: [February 28, 2025, 8:43am UTC](https://discuss.tryton.org/t/error-in-subsciption-module/8353/2 "2025-02-28T08:43:13Z")
In sale configuration you are missing to set a sequence for subscription numbering.
Setting this sequence should fix the error.
---
### Author:  [@Eulengesicht](https://discuss.tryton.org/u/Eulengesicht)
#### Post date: [February 28, 2025, 10:29am UTC](https://discuss.tryton.org/t/error-in-subsciption-module/8353/3 "2025-02-28T10:29:40Z")
Thank you for your quick reply.
Actually, there already was a sequence of type “subscription”, but not attributed to the company. I corrected that, restarted server and client and created a new subscription.
Same result.
):
EG
---
### Author:  [@acaubet](https://discuss.tryton.org/u/acaubet)
#### Post date: [February 28, 2025, 11:25am UTC](https://discuss.tryton.org/t/error-in-subsciption-module/8353/4 "2025-02-28T11:25:00Z")
> [@Eulengesicht](#):
>
> Same result.
Are you sure that the traceback is exactly the same as the posted one?
---
### Author:  [@acaubet](https://discuss.tryton.org/u/acaubet)
#### Post date: [February 28, 2025, 11:29am UTC](https://discuss.tryton.org/t/error-in-subsciption-module/8353/5 "2025-02-28T11:29:56Z")
Do you have more than one company? The company on the subscription tab “Other info” is the same as the set in the sequence?
---
### Author:  [@Eulengesicht](https://discuss.tryton.org/u/Eulengesicht)
#### Post date: [February 28, 2025, 11:37am UTC](https://discuss.tryton.org/t/error-in-subsciption-module/8353/6 "2025-02-28T11:37:42Z")
😊
It looks very similar, but last two sections are different:
```auto
Traceback (most recent call last):
File "/trytond/wsgi.py", line 109, in dispatch_request
return endpoint(request, **request.view_args)
File "/trytond/protocols/dispatcher.py", line 43, in rpc
return methods.get(request.rpc_method, _dispatch)(
File "/trytond/wsgi.py", line 75, in wrapper
return func(request, *args, **kwargs)
File "/trytond/protocols/wrappers.py", line 200, in wrapper
return func(request, pool, *args, **kwargs)
File "/trytond/protocols/dispatcher.py", line 196, in _dispatch
result = rpc.result(meth(*c_args, **c_kwargs))
File "/trytond/model/modelview.py", line 753, in wrapper
return func(cls, records, *args, **kwargs)
File "/trytond/model/workflow.py", line 37, in wrapper
result = func(cls, filtered, *args, **kwargs)
File "/trytond/modules/company/model.py", line 66, in wrapper
result = func(cls, records, *args, **kwargs)
File "/trytond/modules/sale_subscription/subscription.py", line 375, in quote
cls.set_number(subscriptions)
File "/trytond/modules/sale_subscription/subscription.py", line 282, in set_number
company=subscription.company.id).get()
AttributeError: 'NoneType' object has no attribute 'get'
Fault: 'NoneType' object has no attribute 'get'
```
And yes, only one company.
---
### Author:  [@acaubet](https://discuss.tryton.org/u/acaubet)
#### Post date: [February 28, 2025, 11:42am UTC](https://discuss.tryton.org/t/error-in-subsciption-module/8353/7 "2025-02-28T11:42:24Z")
> [@Eulengesicht](#):
>
> It looks very similar, but last two sections are different:
It’s exactly the same error as the first post.
The problem it’s clear and the same as it was: it can not find a sequence for the subscription with the company set on the subscription.
---
### Author:  [@htgoebel](https://discuss.tryton.org/u/htgoebel)
#### Post date: [March 1, 2025, 11:46am UTC](https://discuss.tryton.org/t/error-in-subsciption-module/8353/8 "2025-03-01T11:46:17Z")
I tried to reproduce this in a fresh, minimal setup (only including sale-subscription):
- The sequence was created automatically (and nor assigned to any company)
- The error did not occur for me
If you have some knowladge about python programming, I suggest to add a `breakpoint()` just before line 375 in `/trytond/modules/sale_subscription/subscription.py` and try to learn what is `None` here.
---
### Author:  [@Eulengesicht](https://discuss.tryton.org/u/Eulengesicht)
#### Post date: [March 3, 2025, 9:10pm UTC](https://discuss.tryton.org/t/error-in-subsciption-module/8353/9 "2025-03-03T21:10:11Z")
> [@pokoli](#):
>
> In sale configuration you are missing to set a sequence for subscription numbering.
> Setting this sequence should fix the error.
I’m so sorry and embarrassed at the same time… ):
Due to sloppy reading I missed to pay enough attention to @pokoli 's answer, which was absolutely correct. I messed up “existence of sequence” and “sequence in sales settings” - absolutely my fault, and a silly one…
Thanks to all for taking time and paying attention.
EG
---
### Author:  [@system](https://discuss.tryton.org/u/system)
#### Post date: [March 4, 2025, 9:10pm UTC](https://discuss.tryton.org/t/error-in-subsciption-module/8353/10 "2025-03-04T21:10:48Z")
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